Blackburn Cirrus Bombardier

The Blackburn Cirrus Bombardier was a British four-cylinder inline aircraft engine, developed and built by the Blackburn Aircraft company in the mid-1950s. The engine featured fuel injection.

Cirrus Bombardier
Blackburn Bombardier 702 on display at the Rolls-Royce Heritage Trust, Derby
Type Air-cooled 4-cylinder inline piston engine
National origin United Kingdom
Manufacturer Blackburn Aircraft
First run c.1954


Cirrus Bombardier 203
Military version, 203 hp (151 kW).
Cirrus Bombardier 702
Civil version, 180 hp (134 kW).
Cirrus Bombardier 704
Helicopter engine


Specifications (Cirrus Bombardier 203)

Data from Lumsden.[1]

General characteristics

  • Type: Air-cooled, inline inverted four-cylinder
  • Bore: 4.8 in (122 mm)
  • Stroke: 5.5 in (140 mm)
  • Displacement: 398 cu in (6.5 L)
  • Length: 45.3 in (1,151 mm)
  • Width: 19 in (483 mm)
  • Height: 30.95 in (786 mm)
  • Dry weight: 325 lb (147.4 kg)



See also

Related development

Comparable engines

Related lists



  1. Lumsden 2003, p.91.


  • Gunston, Bill (1986). World Encyclopedia of Aero Engines. Wellingborough: Patrick Stephens. p. 40.
  • Lumsden, Alec. British Piston Engines and their Aircraft. Marlborough, Wiltshire: Airlife Publishing, 2003. ISBN 1-85310-294-6.
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